In one of Boulders most beloved and iconic historic neighborhoods, you will discover this completely reimagined home where visionary modern design harmoniously converges with the timeless allure of its storied facade. Meticulously revitalized by Mosaic Architecture, every detail from the original exposed brick to the carefully curated designer finishes reflects a harmonious fusion of old world character and contemporary composition. A voluminous expanse designed for grand entertaining welcomes where an artistic steel and flagstone floating staircase commands attention against a backdrop of walnut floors that grace the entire home. Embrace the pinnacle of culinary sophistication in the exquisite modern white kitchen that seamlessly melds form and function. The rich hue of the deep blue island adds depth and dimension to the pristine canvas of the cascading waterfall counter while a spherical built in banquette brings whimsy. Two magnificent glass walls illuminate the living room in natural light inviting the surrounding natural beauty to become an integral part of the living experience. Every moment in the primary suite is an exquisite celebration of refined luxury boasting skylights, a private balcony and ambient fireplace. Spa inspired indulgence awaits in the primary bath with a freestanding tub, steam shower, private vanities and personal closets. With a fusion of stained concrete, sleek walnut and glass, the newly completed basement redefines the very essence of sophistication with a glass walled private training center, media and game area, and custom wet bar. Prolific landscaping encompassed by centennial trees and picturesque views creates an unparalleled outdoor oasis on this quarter acre lot where a built in kitchen, gas fireplace, wrap around patios, and a decadent steel hot tub combine to create an escape that you will never want to leave. This enviable location is just blocks from the View Point Trail, the famed Pearl Street and historic Chautauqua Park.
Sold for $5,000,000
$5,000,000
504 Marine St, Boulder, CO 80302
4beds
4,492sqft
Single Family Residence
Built in 1905
10,181 Square Feet Lot
$4,976,400 Zestimate®
$1,113/sqft
$6,494 Estimated rent
Home value
$4,976,400
$4.58M - $5.37M
$6,494/mo
Zestimate® history
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Zillow last checked:
Listing updated:
Listed by:
Stephanie Iannone 303-641-7484,
Compass - Boulder,
Melinda Nassar 720-530-5019,
Compass - Boulder
Bought with:
Anne Wells, 100087416
milehimodern - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1011386
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 2
- 3/4 bathrooms: 2
- Main level bathrooms: 1
Primary bedroom
- Description: Hardwood
- Features: Luxury Features Primary Bath, 5 Piece Primary Bath
- Level: Upper
- Area: 357 Square Feet
- Dimensions: 17 x 21
Bedroom 2
- Description: Hardwood
- Level: Upper
- Area: 195 Square Feet
- Dimensions: 13 x 15
Bedroom 3
- Description: Hardwood
- Level: Upper
- Area: 130 Square Feet
- Dimensions: 10 x 13
Bedroom 4
- Description: Concrete
- Level: Basement
- Area: 140 Square Feet
- Dimensions: 10 x 14
Dining room
- Description: Hardwood
- Level: Main
- Area: 182 Square Feet
- Dimensions: 13 x 14
Family room
- Description: Hardwood
- Level: Main
- Area: 234 Square Feet
- Dimensions: 13 x 18
Kitchen
- Description: Hardwood
- Level: Main
- Area: 528 Square Feet
- Dimensions: 22 x 24
Laundry
- Description: Hardwood
- Level: Main
- Area: 24 Square Feet
- Dimensions: 8 x 3
Living room
- Description: Hardwood
- Level: Main
- Area: 204 Square Feet
- Dimensions: 12 x 17
Recreation room
- Description: Concrete
- Level: Basement
- Area: 209 Square Feet
- Dimensions: 11 x 19
Study
- Description: Hardwood
- Level: Main
- Area: 140 Square Feet
- Dimensions: 14 x 10
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Included: Electric Range, Self Cleaning Oven, Double Oven, Dishwasher, Refrigerator, Bar Fridge, Microwave, Gas Bar-B-Q, Disposal
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Separate Dining Room, Open Floorplan, Walk-In Closet(s), Wet Bar, Kitchen Island, Steam Shower, High Ceilings
- Flooring: Wood
- Windows: Skylight(s), Window Coverings
- Basement: Full,Partially Finished
- Has fireplace: Yes
- Fireplace features: Living Room, Bedroom
Interior area
- Total structure area: 3,267
- Total interior livable area: 4,492 sqft
- Finished area above ground: 3,267
Property
Parking
- Total spaces: 2
- Parking features: Garage Door Opener, Oversized
- Garage spaces: 2
- Details: Detached
Accessibility
- Accessibility features: Main Floor Bath
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Sprinkler System, Balcony
- Spa features: Heated
- Fencing: Fenced,Wood,Other
- Has view: Yes
- View description: Hills
Lot
- Size: 10,181 sqft
- Features: Corner Lot, Evergreen Trees, Deciduous Trees, Level, City Limits, Paved, Curbs, Gutters, Sidewalks
Details
- Parcel number: R0001986
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Cottage
- Property subtype: Single Family Residence
Materials
- Frame, Brick, Wood Siding
- Foundation: Slab
- Roof: Composition
Condition
- New construction: No
- Year built: 1905
Utilities & green energy
- Electric: Xcel Energy
- Gas: Xcel Energy
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available, Cable Available, Satellite Avail, High Speed Avail
Green energy
- Energy efficient items: Thermostat
Community & neighborhood
Security
- Security features: Fire Alarm
Location
- Region: Boulder
- Subdivision: Highland Lawn
Other
Other facts
- Listing terms: Cash,Conventional
Price history
| Date | Event | Price |
|---|---|---|
| 8/21/2024 | Sold | $5,000,000+1%$1,113/sqft |
Source:  IRES as distributed by MLS GRID #1011386 Report a problem | ||
| 7/8/2024 | Pending sale | $4,950,000$1,102/sqft |
Source:  REcolorado as distributed by MLS GRID #8230953 Report a problem | ||
| 5/22/2024 | Listed for sale | $4,950,000+11.2%$1,102/sqft |
Source: REcolorado as distributed by MLS GRID #8230953 Report a problem | ||
| 2/21/2023 | Sold | $4,450,000-6.3%$991/sqft |
Source: Public Record Report a problem | ||
| 2/16/2023 | Pending sale | $4,750,000$1,057/sqft |
Source: IRES as distributed by MLS GRID #976698 Report a problem | ||
| 11/23/2022 | Listing removed | -- |
Source: IRES as distributed by MLS GRID #976698 Report a problem | ||
| 10/6/2022 | Listed for sale | $4,750,000+131.7%$1,057/sqft |
Source: IRES as distributed by MLS GRID #976698 Report a problem | ||
| 7/12/2013 | Sold | $2,050,000-4.6%$456/sqft |
Source: Public Record Report a problem | ||
| 5/21/2013 | Price change | $2,149,900-6.3%$479/sqft |
Source: RE/MAX OF BOULDER INC #703858 Report a problem | ||
| 3/26/2012 | Price change | $2,295,000-4.2%$511/sqft |
Source: Scottsdale Properties #664423 Report a problem | ||
| 3/24/2012 | Price change | $2,395,000+4.4%$533/sqft |
Source: Scottsdale Properties #664423 Report a problem | ||
| 2/27/2012 | Price change | $2,295,000-4.2%$511/sqft |
Source: Scottsdale Properties #664423 Report a problem | ||
| 8/4/2011 | Listed for sale | $2,395,000+245.1%$533/sqft |
Source: Scottsdale Properties Report a problem | ||
| 11/16/2005 | Sold | $694,000+4.5%$154/sqft |
Source: Public Record Report a problem | ||
| 9/10/2002 | Sold | $664,000$148/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $24,026 +1.8% | $270,175 -2.5% |
| 2024 | $23,609 +11.3% | $277,065 -1% |
| 2023 | $21,220 +4.9% | $279,753 +22.4% |
| 2022 | $20,235 +7.3% | $228,509 -2.8% |
| 2021 | $18,854 | $235,085 +8.5% |
| 2020 | $18,854 +14.5% | $216,595 |
| 2019 | $16,467 | $216,595 +14% |
| 2018 | $16,467 | $189,929 -9.5% |
| 2017 | $16,467 +3% | $209,977 +13.7% |
| 2016 | $15,981 +5.6% | $184,616 +76.6% |
| 2015 | $15,133 +72.2% | $104,515 |
| 2014 | $8,788 +1.4% | $104,515 |
| 2013 | $8,669 +0.9% | $104,515 +1% |
| 2012 | $8,592 -3.5% | $103,480 |
| 2011 | $8,908 +7.1% | -- |
| 2010 | $8,317 +29.2% | $110,210 |
| 2009 | $6,440 +3.5% | $110,210 +9.5% |
| 2008 | $6,220 +2.9% | $100,650 -14.1% |
| 2007 | $6,046 +3.9% | $117,120 +23.8% |
| 2006 | $5,821 +21.3% | $94,610 |
| 2005 | $4,798 +47.6% | $94,610 +20.5% |
| 2004 | $3,251 +3.1% | $78,530 +46.5% |
| 2003 | $3,155 +10.3% | $53,590 |
| 2002 | $2,860 | -- |
| 2001 | -- | $494,100 |
Find assessor info on the county website
Neighborhood: Flatirons
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 0.3 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 3.4 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 0.7 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$4,976,400
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Estimated market value
$4,976,400
- Colorado
- Boulder County
- Boulder
- 80302
- Flatirons
- 504 Marine St
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